Totalizator



Oct. 11, 1938.

H. G. wATsoN ET A1. 2,132,910

lTOTALIZATOR Fild Aug. 2, 1935 3 Sheets-Sheet l Oct. 1l, 1938. H. G.WATSON ET A1. y2,132,910

TOTALIZATOR Filed 5mg. 2, 1935 3 Sheets-Sheet 2 -Oct. 11, 1938. H. G.WATSON ET A. 2,132,910

TOTALIZATOR Filed Aug. 2, 1935 3 Sheets-Sheet 3 In vena/q 1 17 6T hf'01? W. c wife/7e!! Patented Oct. 11, 1938 PATENT OFFICE TOTALIZATORHenry George Watson, Camberwell, Victoria, and Henry Crockett Mitchell,Ascot Vale, Victoria,

Australia,

assignors to Duplex Totalisators Proprietary Limited, Melbourne,Victoria, Australia Application August 2, 1935, Serial No. 34,444 InAustralia August 13, 1934 16 Claims.

This invention relates to improvements in and connected withtotalizators and refers especially to apparatus of the type adapted tovisually indicate the odds relating to each of a number of contestantsin a horse or other race or in connection with any analogous event onwhich investments may be made.

Totalizators fulfilling the above mentioned requirements are alreadyWell known and the object of the present invention is to provide novelapparatus for this purpose, said apparatus being simple and effective inconstruction and operation, readily adjustable and adaptable for useeither in a permanent position or as a portable machine.

With these and other objects in view, the invention resides in atotalizator having a plurality of cams corresponding in number to thecontestants, a movable indicating member associated with each of saidcams, control means individual to said cams and operable either manuallyor mechanically in accordance with the number of investments made on therespective contestants whereby the corresponding indicating members arecaused to move through distances proportional to the logarthms of saidnumbers of investments, at least one additional indicating memberarranged adjacent to said first-mentioned indicating members, means forcausing the additional indicating member to move through a distanceproportional to the logarithm of the total number of investments made onall the contestants and an odds scale so arranged on the additionalindicating member that the odds in respect of each contestant aredesignated by the relative positions of the cooperating indicatingmembers.

More particularly a totalizator in accordance with the inventionpreferably comprises a plurality of logarithmic cams which are movablerectilinearly in accordance with the number of investments made on therespective contestants, indicating members adapted to move verticallydownwards in proportion to the movement of the respective cams, at leastone additional logarithmic cam movable rectilinearly in accordance withthe logarithm of the total number of in- Vestments on all thecontestants, and at least one odds scale adapted to move verticallydownwards in proportion to the movement of the lastmentioned cam andinjuxtaposition to the firstnientioned indicating members whereby thepositions of said indicating members relatively to the odds scaledesignate the Odds relating to the respective candidates.

The movements of the indicating members corresponding to the variouscontestants are preferably controlled, either directly or throughmultiplying mechanism, by flexible connections passing from therespective rectilinearly movable logarithmic cams and the odds scale orscales which may consist of flexible metal strips having the requisitegraduations applied to the front faces thereof are preferablycontrolled, either directly or through intermediate multiplyingmechanism, by flexible connections passing from the correspondinglogarithmic cam.

A salient feature of the invention resides in utilizing the weights ofthe various indicating members and scales to impart the requisitemovement to the corresponding cams, these movements, however, beingcontrolled by individual cam followers movable in direct proportion tothe number of investments made on the respective contestant or to thetotal number of investments made, as the case may be.

From the foregoing it will be understood that the vertical distancebetween any one of the indicating members and the lower end of the oddsscale is proportional to the logarithm of the ratio between the totalnumber of unit investments and the number of investments made on thecontestant corresponding to said indicating member.

Therefore, as a definite rate of odds is payable for each such ratio,the odds corresponding to a selected number of such ratios are marked onthe said scale.

'I'he odds so indicated may be the so-called totalizator odds whichinclude the stake, or alternatively they may be bookmakers odds whichexclude the stake and which therefore are 1 less than totalizator odds.

Thus, if A designates the total number of unit investments on thetotalizator and B designates the number of unit investments made on aparticular contestant, bookmakers odds are equal to Further features ofthe invention reside in the particular construction and arrangement ofthe parts which hereinafter are more fully described.

In the accompanying drawings which show preferred embodiments of theinvention:

Figure 1 is a View in front elevation of a totalizator constucted andarranged in accordance with the invention.

Figure 2 is a view in rear elevation of the totalizator shown in Figure1.

Figure 3 is a View in sectional end elevation taken on the line 3-3 ofFigure l and is drawn to a larger scale.

Figure 4 is a sectional view similar to Figure 3 and is taken on theline 4 4 of Figure 1.

Figure 5 is a view in end elevation of a Acam and associated mechanismcorresponding to one of the contestants and is drawn to a larger scalethan the preceding figures.

Figure 6 is a view in sectional plan taken on the line S-i of Figure 5.

Figure 7 is a fragmentary view of portion of a cam and associated parts.

Figure 8 is a view in end elevation showing the mechanism included inFigure 5. 1

Figure 9 is a view inrsectional plan taken on the line 9 9 of Figure 1and is drawn to a larger scale.

Figure l is a VView showing a modification which hereinafter is fullydescribed.

For convenience the following description is directed to a totalizatoradapted to be employed in connection with horse racing though it will beunderstood from the foregoing tlat the invention is not confinedthereto.

Referring now to the drawings and particularly to Figure 1 thereof, thereference numeral iii designates a Vertical metal sheet secured to aframe ii (Figures 2, 3 and 4) and forming the face of the apparatuswhich is housed in a suitable building it. This building is open at thefront whereby the said metal sheet lil is visible from the outsidethereof.

A plurality of indicator plates l2, one for each horse, are slidablymounted in front of the face plate iii and are adapted to movevertically downwards in proportion to the logarithms of the numbers ofinvestments made on the respective horses which are identified as shownby numbers applied to the front faces of the indicator plates.

Each indicator plate i2 ismounted on a corresponding vertically'disposed guide strip I3 which is secured to the face plate i and spacedtherefrom by distance pieces ifi. For this purpose two spaced pairs ofscrews l having circular heads provided with circumferential grooves aresecured to the back of each indicator plate i2 and the longitudinaledges of the corresponding guide strip i3 are slidably received in thegrooves as shown in Figure 9, and on the indicator plate for No. 3 horsein Figure 1.

A plurality of odds scales li formed of relatively wide flexible metalstrips are also mounted for vertical movement in advance of the faceplate i il and in the arrangement shown in the drawings four such scalesare provided in spaced relationship, thus forming three intermediatespaces in each of which four indicator plates l2 are mounted. It will beunderstood, however, that any desired number of scales i i5 may beemployed and that any convenient number of indicator plates l2 may bearranged between each adjacent pair of scales.

These scales are adapted to be moved downwardly, as hereinafterdescribed, in proportion to logarithm of the total number of bets made.

The edges of each of the scales i6 are received in correspondingvertical guide tracks each of which is formed by a pair of spaced metalstrips il which are secured to and spaced from the face plate iii asalso shown in Figure 9.

Preferably the indicator plates are reduced in thickness near theirvertical edges whereby the plates disposed next to the scales i6 mayextend in front of the guides I'l therefor.

The front faces of the scales i5, which are moved in unison, ashereinafter described, are suitably marked to display a range of oddsand the odds relating to any particular horse at any stage of theinvestments is ascertained by reading the scale in horizontal alignmentwith the arrowheads disposed centrally on the indicator plate i2corresponding to that horse.

Thus in Figure 1 the odds for No. 1 horse are lO to 1 against, whilstthe odds for No. 3 horse are 2 to 1 on, (which is equivalent to 1/2 to 1against) and so on.

It will be clear that the graduationsy on the various odds scales i 5are identical and that it is only for convenience in reading that aplurality of such scales is provided.

Ifhe upper end of the face plate IB of the appayratus is obscured by aboard i8 mounted horizontally on the building it', and, before anyinvestments are recorded, the number plates i2 and the lower ends of thescales it are disposed behind and are obscured by this board. Indicatorplate l2 for No. 2 horse is shown in this position in Figure 1-i. e., ithas been assumed that no investments have been made on that horse.

Each of the indicator plates i2 is supported on the lower end of acorresponding flexible cable i9 which extends upwards in advance of theface plate it to and around a guide pulley 2Q freely mounted on ahorizontal spindle 2i supported by ybearings 22 secured tothe upper endo-f the frame ii (see Figures 2 and 3).

YThe cables i9 then pass downwards from the respective pulleys 2t andare wrapped around andv secured to individual pulleys 23 which arefreely mounted on a further spindle 2li mounted in bearings 25 fitted tothe frame.

Each of these pulleys 23 has a smaller pulley 25 rigidly secured to oneside thereof, and a cable 21 having one of its ends secured thereto iswrapped therearound and then extends downwards and has its opposite endconnected to a tension spring 28 the opposite end of which is Xed to ahorizontal extension 29 of a vertical guide rod 30.

The upper end of each of the guide rods 30 extends through an opening inthe horizontal flange of an angle shaped bar 3i which is secured to theframe ii in any convenient manner while the lower end of each of saidguide rods is secured as by welding to the upper end of a verticallymovable cam 32 formed from a relatively thin metal plate. 4

Each of these cams 32, which may be termed horse cams, has its frontedge arranged vertically and its rear edge arranged in the form of alogarithmic curve (see Figures 3 and 5).

The weight of each indicator plate i2 is suincient to impart an upwardpull on the corresponding cam 32.

A circular cam follower 33 formed integrally with a slide 35 bearsagainst the curved face of each cam 32 and is adapted to be movedhorizontally away from the cam and through a prede-5 termined distancefor each bet made on the horse corresponding thereto.

For this purpose the slide 34 is mounted on an individual horizontalguide bar 35 of square shape in cross section and having one end securedto a horizontal bar 36 extending at right angles thereto and suitablysupported on the frame II.

The front vertical edge of each cam bears against an abutment or stopmember 82 preferably formed eccentrically on a screw 83 secured to therespective guide bar 35 whereby it may be readily adjusted to firmlyengage the cam when the latter is in its correct vertical position. Inthis way a fine adjustment is provided for the correct setting of thecam and any wear may be readily taken up (Figures and '1).

The ends of the guide bars remote from the bar 36 are secured incorresponding brackets 31 which are secured to a horizontally disposedangle shaped bar 38 also forming part of the frame II.

Each of the brackets 31 rotatively supports one end of a threadedspindle 39 which is disposed parallel to the corresponding guide bar andis received in a correspondingly threaded lug 40 formed integrally withthe cam follower 33 and slide 34.

A gear wheel 4I secured to the rear end of each threaded spindle 39meshes with a pinion 42 fitted to a spindle 43 mounted in a bearing inthe respective bracket 31 and fitted with a hand crank 44. A cam 45 ofsquare formation is secured to each of the spindles 43 and is adapted tobear against one end of a corresponding lever 46 pivoted on therespective threaded spindle 39 and fitted with a tension spring 41 bywhich it is maintained in engagement with the cam.

A further pinion 48 meshes with each gear wheel 4I and operates asuitable form of counting device 49 which is supported on the respectivebracket 31.

Each crank 44 is adapted to be manually turned through one quarter of arevolution for each investment it is desired to record in connectionwith the corresponding horse, and the coacting square cam 45 and lever46 act as a convenient form of stop as well as serving to operate aswitch as hereinafter described. Each investment so recorded isindicated on the corresponding counting device 49,

While the mechanism illustrated in the drawings is adapted for actuationby means of hand cranks, any other suitable means may be ernployed forimparting movement to the threaded spindles 39.

From the foregoing description it will be understood that the partialrotation imparted to the threaded spindles 39 when each investment ismade on the horses corresponding thereto, causes the respective camfollowers 33 to move a predetermined distance away from the curved faceof the respective cam 32. The cam is thus free to move upwards under theinfluence of the weight of the respective indicator plate I2 and througha distance depending on the curvature .of the cams. This curvature issuch that the upward displacement of each cam 32 at any stage isproportional to the logarithm of the number of investments which havebeen recorded on that horse.

In other words the cam contour is set out by plotting the investments ona logarithmic scale along the vertical axis the curve so obtained beingcorrected to compensate for variations in the point of contact betweenthe cam and the follower; for convenience of description logarithmicgraduations are shown along one edge of the cam indicated in Figure 5though it will be understood that in the actual apparatus thesedivisions need not be marked.

, It will likewise be clear that the downward displacement of eachnumber plate I2 is a multiple of the upward displacement of therespective cam 32 and is determined by the relative sizes of the pulleys23 and 26. position of each of the indicator plates I2 at any time is ameasure of the logarithm of the number of investments recorded in favorof the horse designated thereby.

As the upper portion of the curved face of each cam is disposed at onlya very small angle to the vertical, it is desirable to provide auxiliarymeans for locating the cams in the requisite positions corresponding tothe first three investments.

Furthermore, as shown at 18 in Figure 5, the

cam may be stepped in the requisite positions lfor the fourth to thetenth investments in order to more positively determine the position ofthe cam at that stage.

The auxiliary locating means above referred to l comprise three notches19 formed in an upper portion of the respective guide rod 30 and adaptedto be engaged by a flat spring 80 secured at one end to the angle bar3|. A further notch 8I corresponding to the zero position of the cam isarranged above the notches 19 and is engaged by the spring 89 until thefirst investment is made on the corresponding horse. The spring 89 isthen pushed inwards to disengage the notch 8! and allow the cam 32 tomove upwards until its motion is arrested by the engagement of spring 80with the upper notch 19. This procedure is repeated for the followingtwo invest- 'ments after which the motion of the cam is controlled bythe follower 33 in the manner pree viously described.

It has previously been explained that the odds ,scales I6, which arearranged adjacent to the inthe pulleys 23 and secured to a spindle 53rotaj tively mounted in bearings 54 near the lower end of the machine.The cables 5I pass several times around the pulleys 52 and have theircorresponding ends secured thereto.

As the pulleys 52 are all secured to a common spindle it follows thatthe various scales I6 always occupy corresponding positions. The lowerends of the scales I6 at the front of the apparatus are preferablyloaded as by metal plates 55 Whereby tension is imparted to thecorresponding cables 5I.

A small pulley 56 corresponding in diameter to the pulleys 26 is securedto spindle 53 adjacent to one end thereof (see right-hand portion ofFigure 2 and Figure 4) and a cable 51, which passes several times aroundand is secured at one end to the pulley 56, extends upwardly over aguide pulley 58 which is freelymounted on the spindle 24. The cable thenpasses downwards and is secured to a cam 59 in the manner previouslydescribed with reference to the horse cams 32.

This cam 59, which may be termed the "total investments cam, isidentical with the horse Consequently the CII cams 32 and is engaged bya similar follower 33 75 wl l..

which in turn is actuated by corresponding mechanism including a screwedspindle 39.

This threaded spindle 39 is tted with a gear Wheel 4I which meshes witha pinion 48 for a counter 49 which indicates the total number ofinvestments, but, in lieu of a pinion as 42 and operating crank 44 asemployed in connection with each of the cams 32, a ratchet wheel 60 issecured to the end of the screwed spindle (see Figure 8). Y

The ratchet' wheel 69 is engaged by a spring pressed pawl 6| which ispivoted on a lever 62 which in turn is pivoted to the threaded spindleand the outer end of this lever is connected by a link 53 to the lowerend of the reciprocable plunger of a solenoid 64 suitably supported onthe frame of the machine.

A spring 65 serves to normally retain the solenoid plunger in itslowermost position in which an extension on the link 33 bears against abuffer spring 66 in the form of a flexible metal strip secured to thesupporting bar 38.

The number of teeth on the ratchet wheel 60 corresponds to the number ofinvestments recorded when one complete revolution is imparted to any ofthe threaded spindles 39 associated with the horse cams 32 so that eachenergization of the solenoid 64 causes the follower of cam 59 to bemoved through the same distance as that moved through by the follower ofany of cams 32 when an investment is registered by the control mechanismfor said cam.

Consequently, a switch is associated with each of said controlmechanisms whereby the solenoid is energized once for each investmentrecorded on the corresponding horse.

These switches embody flexible members 61 which are mounted on alongitudinally extending conducting strip 68 supported by and insulatedfrom the bar 38 and these exible members 61 are so arranged as to beengaged by a downward extension on the corresponding pivoted lever 46when same is angularly displaced during the registration of aninvestment on the corresponding horse.

The circuit of the solenoid is thus completed from a batterydiagrammatically indicated at 69 through conductor 1E] to the frame ofthe machine through the appropriate pivoted lever 46 and exible member61, conducting strip 68, conductor 1l, switch 12, conductor 13, solenoid64 and conductor 14 back to the battery.

As the various switching means are arranged in parallel it will be clearthat provided no simultaneous actuations for two or more investmentsoccur the solenoid is energized once for every investment recorded onany of the horses and that, therefore, the downward movement of thescales i6 at the front of the machine is proportional to the logarithmof the total number of investments recorded on all the horses.

In order to counterbalance portion of the weights of the scales I6 whensame are extended to a substantial extenti. e., when a relatively largenumber of investments have been registered on the machine-a compensatingspring 15 is provided (see Figure 2).

This spring is secured at one end to an upper portion of the frame IlWhilst its lower end is connected to a cable 16 which passes to andaround a pulley 11 secured to the spindle 53 at the lower end of themachine. This cable 16 may be slack when the scales are in theiruppermost positions but is progressively extended as the scales arelowered, thus counteracting portion of the weight of the scales. It willbe understood, however, that sucient excess weight is required to raisethe total investments cam 59.

From the foregoing description it will be evident that the positions ofthe various odds as shown on the scales I6 may be determined bycalculating the odds actually payable for various ratios between thetotal number of investments lodged and the number of investments lodgedon any particular horse.

In this connection, it is clear that the vertical distance between thearrows on any of the indicating plates I2 and the lower ends of thescales I6 is a measure of the logarithm of this ratio and that,therefore, the positions of the various odds may be readily ascertained.

The odds so determined are obviously less for place investments than forwin investments as, in the former case, the proportion of the totalinvestment which is returned in the form of dividends is divided equallyamong the placed horses and these portions are subdivided among thebackers of such horses.

Consequently for place investments it is necessary for the scales I6 tobe higher relatively to the respectivecam 59 than is the case with wininvestments.

As separate Win and place machines are usually employed, it is notgenerally necessary to provide means for adjusting the position of thescales I6 for this purpose.

However, in a place investments machine, it is desirable to have meansfor correctly indicating the odds when dividends are payable on eithertwo or three horses so that means are provided l for raising the scalesI6 relatively to the cam 59 when changing from two place dividends tothree place dividends and vice versa.

v One convenient arrangement for this purpose is shown in Figure l0 ofthe drawings in which the guide pulley 58 for the cable 51 extendingbetween pulley 55 and total investments cam 59 is provided with aneccentric bush 13 which may be angularly displaced by means of a handlever 19. The hand lever moves over a quadrant 80 having notchescorresponding to the positions for two and three place dividends.

We claim:

l. In a totalizator, a vertically movable indicating member, arectilinearly movable cam consisting of a metal plate having one of itslongitudinal edges of straight formation and its opposite edge in theform'of a logarithmic curve, a follower engaging the curved face of thecam,

mechanism for adjusting the position of the foli lower and operable inaccordance with the number of investments, means connecting the cam andsaid indicating member whereby same move in unison, and means fordisplacing the cam to correspond with movements imparted to the camfollower.

2. In a totalizator according to claim l, a slide supporting thefollower, a guide bar disposed at right angles to the straightlongitudinal edge of the cam and having said slide mounted thereon, anut connected with the said follower and slide, a rotatively mountedthreaded spindle engaging said nut, and means for imparting rotation tothe threaded spindle whereby the follower is displaced in proportion tothe said number of investments.

' 3. In a totalizator according to claim l, a slide supporting thefollower, a guide bar disposed at right angles to the straightlongitudinal edge of the cam and having said slide mounted thereon, anut connected with the said follower and slide, a rotatively mountedthreaded spindle engaging said nut, toothed gearing and a hand crank forimparting movement to the threaded spindle.

4.- In a totalizator according to claim 1, a slide supporting thefollower, a guide bar disposed at right angles to the straightlongitudinal edge of the cam and having said slide mounted thereon, anut connected with the said follower and slide, a rotatively mountedthreaded spindle engaging said nut, a ratchet wheel on the threadedspindle, a pawl coacting with the ratchet wheel to impart rotationthereto and electromagnetic means for actuating said pawl in accordancewith said number of investments.

5. In a totalizator according to claim 1, a guide rod secured to thesaid cam and extending parallel to the straight longitudinal edgethereof, bearings for said guide rods, notches in the guide rodscorresponding to predetermined positions of the cam and a` catch adaptedfor engagement with said notches.

6. In a totalizator according to claim 1, a plurality of steps at oneend of the curved edge of the cam to ensure said cam being accuratelylocated with respect to the follower therefor.

7. In a totalizator, an indicating member arranged for verticalmovement, a logarithmic cam corresponding to said indicating member,means connecting said cam and said indicating member whereby same movein unison, means biasing said cam and indicating member towardspositions corresponding to the maximum number of investments, controlmechanism operable in accordance with the number of investments on acontestant corresponding with said cam whereby said biasing meansbecomes operative to displace the cam and said indicating member througha distance proportional to the logarithm of said numbers of investments,an odds scale movable vertically adjacent to the indicating member, alogarithmic cam connected with the said scale, and means operable inaccordance with the grand total number of investments to effect movementof the last mentioned cam in such manner that the said scale isdisplaced through a distance proportional to the logarithm of said grandtotal.

8. In a totalizator according to claim 7, means biasing the lastmentioned logarithmic cam towards the position corresponding to themaximum number of investments characterized in that said means operablein accordance with the grand total of investments comprises a followerengaging said cam and movable in direct proportion to the grand total ofinvestments to permit said biasing means to become effective to displacethe said cam and the odds scale connected thereto.

9. In a totalizator, a face plate or the like, an indicating memberarranged for vertical movement in front of said face plate and havingits zero position adjacent the upper end thereof, a control membercorresponding to said indicating member, means for displacing saidcontrol member in direct proportion to the number of investments on thecontestant corresponding thereto, a Weight actuated logarithmic cam,means connecting said cam and said indicating member whereby same movein unison, the movement of said control member permitting movement ofsaid cam under the influence of the controlling weight, whereby theindicating member moves downwards in proportion to the logarithm of thenumber of investments on the corresponding contestant, an odds scalearranged for vertical movement in front of the face plate and having itszero position adjacent the upper end of said face plate and means formoving said scale in logarithmic proportion to the grand total ofinvestments.-

10. In a totalizator, a supporting member, an odds scale formed of aflexible strip of material, said odds scale being mounted on saidsupporting memberV and having its ends depending from vopposite sidesthereof, means for displacing said strip in proportion to the logarithmof the grand total of investments, an indicating member arrangedadjacent to the flexible strip, and means i or moving said indicatingmember in proportion to the logarithm of the number of investments onthe contestant corresponding thereto.

11. In a totalizator, an indicating member arranged for verticalmovement, a flexible member supporting the indicating member, alogarithmic cam arranged for rectilinear movement, means biasing saidcam for movement in one direction, control mechanism adapted to beactuated in accordance with the number of investments on a contestantcorresponding to the cam to permit of said cam being displaced under theiniluence of the biasing means through a distance proportional to thelogarithm of said number of investments, and means connecting the camwith the flexible connection passing from the indicating member wherebythe latter moves in unison with the cam.

l2. In a totalizator, a flexible strip of material having a scale ofodds marked on one face therer of, a roller, said strip passing over theroller and extending downwards on opposite sides thereof, one of thedepending portions being exposable to display the odds thereon, arectilinearly movable logarithmic cam, a follower engaging said cam,means for displacing said follower in proportion to the total number ofinvestments on all the contestants, means biasing the cam for movementin one direction and becoming operative upon dispiacement of thefollower to move said cam through a distance proportional to thelogarithm of said total number of investments, and means connecting saidcam with the metal strip whereby same move in unison, said exposableportion of the strip being arranged to move vertically downwards as thenumber of investments increases.

13. In a totalizator, a vertical face plate, an indicating membercorresponding to a particular contestant and arranged for verticalmovement in front of the face plate, a corresponding vertically movablelogarithmic cam, means embodying a flexible member for connecting theindicating member and said cam whereby same move in unison but inopposite directions, said indicating member being weighted whereby sametends to move downwards and to cause said logarithmic cam to moveupwards, a follower engaging said cam, means for displacing saidfollower in accordance with the number of investments on the contestantcorresponding thereto whereby the coacting cam will be moved upwardsthrough a corresponding distance, a weighted odds scale adapted forvertical movement in front of the face plate, a further verticallymovable logarithmic cam, means embodying a flexible member forconnecting said odds scale and said further cam whereby same move inunison but in opposite directions, a follower engaging said further cam,and means for displacing said last mentioned follower in accordance withthe grand total of investments to permit a corresponding downwardmovement of said weighted odds scale.

14. In a totalizator according to claim 13, a guide pulley for theiiexible member passing from said further logarithmic cam, an eccentricbush supporting the guide.V pulley and means for angularly adjusting theeccentric bush to adjust the position of the odds scale relatively tosaid cam.

l5. In a totalizator, a plurality of movable indicating members arrangedadjacent to each other, a logarithmic cam corresponding to each of saidindicating members, means connecting said cams and the correspondingindicating members whereby same are movable in unison, means biasingsaid cams and indicating members towards positions corresponding to themaximum number of investments, a control mechanism individual to eachlogarithmic cam and operable in accordance with the number ofinvestments made on a contestant corresponding thereto whereby thecorresponding biasing means becomes eiective to displace the cam andcoacting indicating member through a distance proportional to thelogarithm of said number of investments, a movable odds scale arrangedadjacent to said indicating members, a further logarithmic cam connectedwith said odds scale and movable in unison therewith, means biasing saidodds scale and said further logarithmic cam towards positionscorresponding tothe maximum number of investments, means coacting withsaid further logarithmic cam, said means being displaceable to permitsaid biasing means to become effective to displace said odds scale andsaid further logarithmic cam and means operable by each said individualcontrol mechanism to displace said means coacting with the furtherlogarithmic cam, the resultant movement of the odds scale beingproportional to the grand total of investments.

16. In a totalizator, a plurality of weighted indicating memberscorresponding with diierent contestants and arranged for verticalmovement, a rectilinearly movable logarithmic cam individual to eachindicating member, supporting means, a eXible connection extendingupwardly from each indicating member around said supporting means anddownwardly on the opposite side thereof, means connecting the downwardlyextending portion of each flexible connection and the correspondinglogarithmic cam whereby said indicating members and coacting cams aremovable in unison, a follower engaging each of said cams, means fordisplacing each said follower in correspondence with the number ofinvestments on the contestant corresponding thereto whereby said cam andthe coacting indicating member will move through a correspondingdistance under the influence of the weight of said indicating member,further supporting means, a flexible strip of material bearing a scaleof odds and passing over said further supporting means whereby itdepends from opposite sides thereof, a weight on one depending portionof said iiexible strip, a further rectilinearly movable logarithmic cam,means connecting said last mentioned cam and the depending portion ofthe flexible strip not provided with said weight whereby said cam andsaid flexible strip are movable in unison, a follower engaging said lastmentioned cam, electromagnetic means operable to impart movement. tosaid last mentioned follower, and a control switch individual to each ofsaid means for displacing said rst mentioned followers, each saidcontrol switch being arranged in circuit with said electromagneticmeans.

HENRY GEORGE WATSON. HENRY CROCKETT MITCHELL.

